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/* Copyright 1995-1997,2000-2001,2006,2008,2010-2011,2014,2018
Free Software Foundation, Inc.
This file is part of Guile.
Guile is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Guile is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Guile. If not, see
<https://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "dynwind.h"
#include "gsubr.h"
#include "numbers.h"
#include "ports.h"
#include "threads.h"
#include "stackchk.h"
/* {Stack Checking}
*/
int scm_stack_checking_enabled_p;
long
scm_stack_size (SCM_STACKITEM *start)
{
SCM_STACKITEM stack;
#if SCM_STACK_GROWS_UP
return &stack - start;
#else
return start - &stack;
#endif /* SCM_STACK_GROWS_UP */
}
void
scm_stack_report ()
{
SCM port = scm_current_error_port ();
SCM_STACKITEM stack;
scm_thread *thread = SCM_I_CURRENT_THREAD;
scm_uintprint ((scm_stack_size (thread->continuation_base)
* sizeof (SCM_STACKITEM)),
16, port);
scm_puts (" of stack: 0x", port);
scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port);
scm_puts (" - 0x", port);
scm_uintprint ((scm_t_bits) &stack, 16, port);
scm_puts ("\n", port);
}
SCM_DEFINE (scm_sys_get_stack_size, "%get-stack-size", 0, 0, 0,
(),
"Return the current thread's C stack size (in Scheme objects).")
#define FUNC_NAME s_scm_sys_get_stack_size
{
return scm_from_long (scm_stack_size (SCM_I_CURRENT_THREAD->base));
}
#undef FUNC_NAME
void
scm_init_stackchk ()
{
#include "stackchk.x"
}
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